Subject: Addition Strategies

Addition Mission: Facts Practice

All in the Fact Family

Tropical Fish KenKen® Puzzle

Quick Addition: Adding Four Numbers

Practice Front-End Estimation

Finding the Missing Number

How to Find the Missing Number

Find the Missing Number

Thermometer Math

Thermometer Subtraction

Thermometer Addition

Number Line Math

Multi-Step Word Problems

Multi-Step Addition Word Problems

Number Line Word Problems

Customary Measurement

Number Line Addition

Counting on the 100s Chart (Part Two)